William c



W. C. HEDGCOCK. BRAKE BEAM FULCRUM CONNECTION.

APPLICATION FILED .IULY27. 1912.

$523,269. Patented Dec. 2,1919.

8TATES ran? F ICE WILLIAM c. HEDGCOGK, or CHICAGO, ILLINOIS, ASSIGNOR ToAMEnIcAN STEEL FOUNDRIES, oronrcaeo, ILLINOIS, A conroaArIoN orILLINOIS.

IBRAKE-BEAlVI-FULCR-UM CONNECTION.

Specification of Letters 1?atent. Patented Dec. 2, 1919.

Application filed July 27, 1917. Serial No. 183,048.

To all whom it may concern Be it known that 1, WILLIAM C. HEDG- COCK, acitizen of the United States, residing at Chicago, in the county of Cookand State of Illinois, have invented certain new and useful Improvementsin Brake-Beam- Fulcrum Connection, of which the following is aspecification.

This invention relates to brake riggings, and more particularly toconnecting means between the lever fulcrums and their associated parts.7 7

One of the objects of my invention is to make connections between leverfulcrums and their associated parts more durable.

Another object is to provide an improved connection between the parts inquestion to meet the various requirements for successful commercialoperation.

These and other objects are accomplished by providing a lever fulcrumhaving an opening therein, an associated member having an openingtherein, a pin extending through the openings in said lever fulcrum andmember connecting the same, and means to prevent movement of said pin.

The invention is illustrated on the accompanying sheet of drawings, inwhich Figure 1 is a plan View of a brake beam having secured theretolever fulcrums embodying my improved connecting means between the leverfulcrums. and associated parts;

Fig. 2 is a fragmentary side elevation, parts being in section,showingon a larger scale my improved connection between a lever fulcrumand a lever; and

Fig. 3 is a fragmentary top elevation of the arrangement shown in Fig.2.

The various novel features of my invention will be apparent from thefollowing description and drawings and will be particularly pointed outin the appended claim.

Referring to the figures of the drawing, it will be noted that I haveshown a brake beam having trunnions 11 at opposite ends thereof for thereception of brake heads (not shown). Secured to this brake beam,

which as shown is of I-section, near opposite ends thereof, are leverfulcrums 12 and 13, and secured to the middle portion of said beam isanother fulcrum member 1 1. The free end of each of the fulcrum membersis bifurcated to form jaws 15 and 16 which are for locking each pin intwo places.

provided with registering openings 17 and.

18 respectively.

As shown in the figures of the drawing, a

lever 19 is pivotally connected to each of the fulcrum members 12 and 13by a pin 20 which passes through the openings 17 and 18 in the jaws ofthe fulcrummember and also through an opening: 21 in the associatedbrake lever.

also extending through an opening 27 in the pin 20, whereby the pin 20,which forms the pivotal connection between the fulcrum lever and itsassociated member, may be held in a given position. I have provided eachof the bosses with registering openingsfor the reason that the pin maybe driven in from" either side. If desired, the pin may beprovided witha plurality of openings, one adj cent each of the pairs of slots in thebosses The pins shown in these drawings are provided with heads 28, butit is evident that plain pins may be provided if desired.

Pivoted to the middle fulcrum member 1 1 is any suitable member 29, forexample, a hanger or a pull rod. The pivotal connection of'this memberto the fulcrum member is the same as the pivotal connection between thelever fulcrum 12 and 13 and their cooperating levers 19, the pin being 7locked against movement.

By means of this arrangement the life of the pin connecting .the partsin question is greatly lengthened and at the, same time requires aminimum amount of attention.

It is apparent that there may be various modifications of the inventionherein particularly shown and described, and it is my intention to coverall such modification which do not involve a departure from the spiritand scope of the invention as set forth in the following claim.

Heretofore the pin has been permitted to move around freely in thel-VhetI claim is: r In brake mechanism, the combination of a lever fulcrum,one end of which is provided with jaws having bosses With registeringopenings and also open slots therein, abrake member associated therewithlocated be-v tween the jaws and having an opening registemng With theopenings 1n sald bosses n p111 WhlCh may" be passed through said 0penings from opposite directions, and akey connected to said pin andinsertible in either one of said slots in accordance with the positionof the in to prevent movement of the latter.

' Signed at Chicago, Illinois, this 18th day of July, A. D. 1917.

WILLIAM G. HEDGCOCK.

